Separable fastener



S. D. BOYNTON SEPARABLE FASTEMER Nov. 6, 1928.

Original File d Dec. 20, 1924 w gmwwwwwww 1%. i 9

0371/7071), Wham! N (Biz/96.

' tween.

Patented Nov. 6, 1928,

N EDL AT S FICE.

SOLON n. BoYN'roN, or- BOSTON, MASSACHUSETTS, ASSIGNQR r0 CARR FAS rENEB comrnrmor cameraman, MASSACHUSETTS, A CORPORATION or MAINE.

SEPARABLE FASTENER. Y

Application filed December 20, lezesenai non-57.153. Renewed m 31, 1928;-

This invention aims to provide an improved separable fastener.

In the drawings,.which illustrate a preferred embodiment of my invention:

Figure 1 is a rear elevation of the socket,

V 2 is a section on the line 22 of Fig.

1, showing the socket secured tov the'stud,

the stud being in elevation; I g I Fig. 3 is a section similar to Fig. .2, but

showing the socket being tipped out of engagement wit-h the stud;

Fig. 4 is a Section on'the line of Figi:

2;and 7 Fig. 5 is a section on the line 5-5 of Fig.4, showing. the attaching means for securing the socket parts to their carrying medium;

Referring to the drawings, I have shown the usual stud having a head 1, neck 2, shank 3 and base portion 4 securedto theisupport 5 by the usual attaching screw 6. p The-socket, as illustrated, is simple, inex pensive and durable andcomprises a casing 7 and a front plate 8 secured to opposite sides of acurtain 9, or other flexible support. The

4 above mentioned parts of the socket are secured to the socket by a pluralityof attaching prongs 10, which are presented by the front plate 8. These prongs pass through the.

curtain 9, through slots 11in the base 12 and are clenched outwardly and downwardly against the base 12 of the casing, as best illustrated in Figs. 4 and 5.-

The casing 7 is pressed Each wall presents a web portion 14, which extends toward the center of the casing to form a stud-receiving aperture 15, therebe-- The metal then extends from the web portions 14 toward the base to'form acontractible and'expansible cup portion 16 terminating about midway betweenthe curtain 9 and the webportionsl l. At the inner. end or bottom of the cup portion,I have provided two jaws 17, 17 for engagement with the neck of the stud when the socket and stud are engaged, as bestillustrated'in Fig.2.

The cup-shapedpor-tion 16 is so shaped that it closely embraces three sides of the stud (namely, the bottom and sides) and is spaced away from the to side when the stud and socket are engage This arrangement preportions 16 bend at the web portions 14.

from a singlepiece a of metalby passing a sheet of metal through PATENT-OF- Vents p lof the stud and socket by a V bottom of the curtain, which pull causes. the

socket to tip out of engagement with theistud.

Enough space is provided .between the curtain 9 and the jaws17, 17 so that the head may extend into the casing without providing a hole in the curtain, thereby leaving the curtai n substantially intact. Thus the curtain can withstand greater-strain, without pulling free from the socket, than a curtain that is provided with an aperture to permit passage of the head of .the stud therethrough,

When engagingrthe stud withthe socket, the head of the stud enters the stud-receiving aperture 15 and passes between the jaws 17, thereby spreading'them and expanding boththe cup-shaped portions 16 and the walls The head then passesbetween the aws which contract again and engage the neck of i the stud. (Fig. 2). v The walls 13, 13 bend at the base 12 of the casing 7 and the cup sha'ped To efiect disengagement of the socket, the

operator graspsthe lower edge of the curtain i 9 and exertsa slight outward pull;thereon.

I, This action tips that portion of the cupshaped portion 16, that is normally spaced away from the shank 3 of the stud,t oward the shank 3 and the jaws 17 expand (Fig. and.

tip out of engagement with the neck 2 of the lVhile I have'shown and described a pre ferred embodiment ofmy invention, it will be understood thatI have, done so for clarification and not for limitation, my invention be i mg best defined 1n the following claims. c

I claim-' 1. A separablefastener comprising incombination, a stud having a head, a neck and a shank p ortion,a socket for engagement; with saidstud including a front plate. and .a base plate securedto opposite sidesv ofasocketcarrying medium by a plurality of attaching prongs presented by one of said plates, a wall extending from said base plate "away from the carrying medium, a second wall surround. ed by said firstwalhsaid second wall provid,-. ing means at its free end for engagement with said stud, said second wall being oval-shaped in cross-section to provide means for closely embracing the stud at 1 at leastone-side to prevent tipping of the socket relative to the stud while being spaced away from the stud at medium, said socket casing presentin receiving aperture, resilient means at said aperture forengagement w1th the neck of one side to permit tipping of the socket relative to the stud so that the fastener may be separated by a pull exerted in a. predetermined direction.

2. A separable fastener comprising, in combination, a stud having a head, a neck and a shank portion, a cooperating socket including a socket casing and an attaching plate secured to opposite sides ota socketcarrying medium, said socket casing presenting beyond the back face-of the socket-carrying medium resilient means pressed from said casing for engagement with the neck of the stud, said resilient means providing a wall surrounding a stud-receiving aperture which is extended atone side, said wall being adapted closely to embrace the shank of the stud at three sides to lock the fastener against separation by stresses exerted at three sides thereof while the extended portion of the aperture spaces said wall from the shank at the fourth side to permit said socket to tip relative to said stud when a pull is exerted in a predetermined direction thereby permitting separation of the fastener.

3. A separable fastener comprising, in combination, a stud having a head, a neck and a shank portion cooperating with a soc et including a socket casing secured to the inner face of a socket-carrying medium by means presented by an attaching plate located at the'outer face of the socket-carrying (Y a studthe stud and said socket casing also providing means which closely embrace three sides of the shank of said stud to lock said stud and socket against separation by stresses exerted at three sides thereof, said means being spaced away from said shankat the fourth side to permit said socket to be tipped out of engagement with said stud, by a pull at a pre determined side of said socket;

l. A separable fastener c omprising, in

combination, a stud having a head, a neck anda shank portion cooperating with a socket having a contractible and expansible stud-engaging casing secured to the inner face of a socket-carrying medium, said casing formed from a single, piece of metal and presenting abase portion lying against the inner face of the carrying medium, contrac:

tible and expansible walls extending there from toward the stud, web port-ions extend ing inwardly from said walls to form an elongated aperture at the outer end of said casing and a plurality of resilient stud-engaging' portions extending from said web toward the base ofsaid casing to provide niea-nsforengagement with the neck of the stud.

V 5, A separable fastener comprising, in

combination, a stud having a head, a neck and a shank portion cooperating with a socket having a contractible and expansible stud-engaging casing secured to theinner ,face of a socket-carrying medium, said casoutward strain exerted at three sides thereof and spaced away from the shank at the fourth side to permit separation of said socket from said stud by a pull exerted thereon in a predetermined direction.

6. A socket for a separable fastener including a casing having a base portion secured to a suitable support, a wall extending from said base in a direction awav from the support, a web extending inwardly from the outer end of said wallto provide a studreceiving aperture, resilient portions of sub stantial length extending from said web toward said base and surrounding the studreceiving aperture and aw portions present ed by the free-ends of said resilient-portions for engaging the neck of a stud.

7. separable fastener comprising, in combination, a stud member having a heac, aineck and a shank, a socket member having a one-piece resilient casing provided with base portion secured to the inner face of'a flexible fabric by a plurality of attaching prongs presented by an attaching plate located at the outer face of the flexible fabric, a cup-shaped portion presented by said casing and closely en'ibracingthe shank of the stud at three sides to prevent tipping of said socket member relative to said stud member,

to lock said socket against separation by an said cup-shaped portion being spaced fron the shank of the stud member at the fourth side thereby to permit separation of the fastener by a pull at a predetermined side thereof and a plurality of neck engaging jaws located on the bottom of saidcup-shaped SOLON D. BOYNTON. 

